Located on a serene 125-acre campus on the east shore of  Orchard Lake, St. Mary's Preparatory School has been a home to young men since 1885.  An active theology program, which includes Mass twice a week, community service, daily religion classes, and the opportunity to participate in retreats throughout the year, serves as a spiritual framework for a college-preparatory education.  A student/teacher ratio of 10:1 and an average class size of less than 20 students combine to create a highly personal, family-oriented setting for learning.  State championship athletic programs, along with various intramural and club activities, give all students the opportunity to be involved and to be active members in the school community.  A campus shared with Madonna University gives select Seniors and Juniors access to college level classes and credit without leaving the grounds.  The shared campus also means reduced costs, making us one of the most affordable boarding schools in the country.